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3 years ago

What is the circumference of the circle? (use 3.14 for pi)

Mathematics

2 answers:

Alina [70]3 years ago

3 0

Step-by-step explanation:

$Circumference = d\pi$

$Circumference = (18) \pi$

$Circumference = 56.52$

The circumference of the circle is 56.52 km which is letter choice B.

Shtirlitz [24]3 years ago

3 0

Answer:

56.52 km

Step-by-step explanation:

circumference of circle =2πr or dπ

d×π=18×3.14=56.52 km

hope this helps

plzz mark me brainliest

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Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

2 years ago

Write a sentence about anything you want using the ratio 4: 2. (Hint Start with the words "For every")

Nina [5.8K]

Answer:

For every four cookies, there are two glasses of milk.

For every four scoops of ice cream, there are two plates.

Step-by-step explanation:

Anything works really, just make sure it make sense.

Hope this helps :-)

7 0

3 years ago

WILL MARK BRAINLIEST, I NEED IT ASAP! Find N(A) A= {letters in the word "Strawberry}

Luden [163]

Answer:

i think n(a) =10

Step-by-step explanation:

hope this is helpful

4 0

3 years ago

Carlos has six cards in a bag, numbered 2, 2, 3, 6, 8, and 9. What is the probability Carlos will randomly select a 2 or a 9

AfilCa [17]

Answer:

50 percent

Step-by-step explanation:

100 percent divided by 6 (the amount of data) is 16 2/3.

Each number represents 16 2/3 percent.

3 of the numbers are either 2 or 9.

16 2/3x3=50.001

The final answer is a 50% probability.

I think

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3 years ago

If a mountain in 5,098 feet tall how many milimeters is it?

nikitadnepr [17]

The answer is 1551432

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3 years ago